Chair-mat



IvI. BLUMENTHAL.

CHAIR MAT.

APPLICATION FILED Au a.5y 1919.l

Patented May 31,1921..

, Umrsesm'rss Parar freies;

l miraron BLUMENTHAL, or BROOKLYN, NEW YORK.

annum/rar. l

Speeiication of Letters Patent. Patentd May 31, 1921 l Application tiledAugust 5, 1919. Serial No. 315,462.

Tf1-all whom it' may concern.'

'B'e it known thatI, MAURICE BLUMEN- THAL, residingin Brooklyn, inA thecounty of Kings and State of New York, have invented certain new anduseful Improvements in Chair-Mats, of which the following is aspecificatie l This invention relates to a 'chair mat.

The object of the invention is to, provide a -mat upon which a chair maybe easily moved to and fro, one which will be simple and attractive inappearance, which may be manufactured at small cost, and one which willbe durable and eflicient.

In moving a ,chair back and forth over a polished floor thefloor'ordinarily sustains considerable injury due to the rubbing orrolling of the chair legs about in the samelocality upon the ioor. Thefeet of a person occupying the chair also causes injury to the floor.

If the Hoor be covered by a carpet then the carpet receives the injury.Where carpet is present the softness of the pile of the carpet makesmovement ofthe chairmore or less difficult and annoying.

It is an object of this invention, therefore,

- to provide a mat which may be laid upon any type of floor, eithercarpeted or otherwise, and whiclrwill receive all of the wear from thechair legs and from the feet of a person occupying the chair, and whichwill thorou hly protect the licor and at the same time a low amplefreedom of movement of the chair.

v A further object isv to provide a' matl which is reversible end forendso that different portions of the mat may be used at dierent times forreceiving the major part of the wear both from the chair and from theusers feet.

A further object is to provide a mat including prepared localitiesor'tracks for receiving the chair legs and along which the chair may be'move with minimum resistance.

A further object is to providea mat in which the mentioned preparedlocalities lare adjustable relative to each other for accommodatingchair legs of diiferent dimens1ons. l

Other objects and aims of the invention, more or less specific thanthose referred to above, will be in part -obvious and in part pointedout inthe course of-the following description ofthe elements,combinations, arrangements of parts, ;and applications of principles,constituting the invention; and the scope of protection contemplatedwill be indicated in the appended claims.

, In the accompanying drawings which are to be taken as a part of thisspecification, and in which I have shown merely a preferred form oflembodiment of the invention tionand illustrated as in use:

Flg. 2 -1s a top plan view of the mat shown in F1g. 1, and

Fig. 3 is an enlarged transverse sectional upon the i plane f Figure l aperspective view of a mat y -constructed 1n accordance with thisinvensite longitudinaledges of the bed plate are a pair of adjustabletrack members G. Thesealso are preferabl formed from sheet metal andprovide relatlvely depressed portions longitudinally -thereof providingthe 'tracks ll along which the casters 2, or the like, upon the chairlegs, are :adapted to move. The side walls, as 3, of the tracks aresufficiently deep and steep to prevent sey unintentional displacement ofthev casters 2 v from the tracks.

Since, of coursethe distance between the legs of diH'erent chairs mayvary to some extent, it is desirablev that the tracks l be Aadjustabletoward and away Vfrom each other so as properly to receive the casters2. As a simple expedient for providin the desired adjustability themembers have their outer longitudinal edges turned back, as at 4,' andreceived beneath the longi' tudinal marginal edge portions 5 of the bedplate L. Spacing'blocks 6 are arranged between'the main or upper'portions 7 of the members G and the ad'acent upper surfaces or theportions 5, an clam ing screws, or the like, as 8 are arrangedp forclamping the portions 5 between the spacing blocks 6 and the portions 4.The screws 8 are received within slots 9 formed in the portions 5 of thebed plate extending in a direction transversely of the bed plate.

lWhen it is desired to adjust the tracks it is simply necessary toloosen the screws 8, move the tracks along the slots 9 and thenretighten the screws. The screws are disposed so that their heads openthrough the portions 7 of the tracks where they may be easily reachedwith a screw driver.

Between the two track members G and upon the upper surface of the bedplate is arranged a filter member H. This may consist of a rectangularpiece of linoleum or other suitable material, or its upper surface maybe covered by a piece of carpet or the like. Its opposite longitudinaledges are received beneath longitudinal Aflanges 10 formed upon thetrack members G and suiiicient space, as 11, is left for accommodatingadjustment of the tracks. rThe flanges 10 serve as clamp means engagingthe filler for retaining the iller against displacement while the screws8 are screwed home. The filler H is intended to receive the wearparticularly from the users feet, while at the same time lending warmthand attractiveness to the whole device. It may be readily removed andreplaced whenever desired by simple manipulation of the screws 8.

rlhe opposite ends of the mat may be conveniently finished od bymetallic binder strips 12, the same being disposed ttor closing tle endsof the tracks 1 so as to prevent unintentional movement of the chairlongitudinally out of the ends of the tracks.

lt will thus termediate or body portion of theA mat may be made soft andinviting to the feet of the user, yet the portions of the mat with whichthe chair legs engage, namely the tracks 1, are hard and inexible sothat the chair legs are freely movable therealong. The side walls of thetracks are likewise hard and indexible s o that engagement oit the chairlegs or casters therewith will not imede the movements of the chair.

All of the metal parts, ot course, may be suitably painted, or otherwiseornamented, according to preference.

As many changes could be made in this construction without departingfrom the scope of the invention as defined 'in the lowing claims, it isintended that all matter be seen thatv while the in-` Lampes containedin the'above description or shown in theaccompanying drawings, shall beinterpreted as illustrative only and not in a limiting sense.

Having thus described my invention, what I claim as new .and desire tosecure by Letters Patent is 1. A chair mat comprising a bed plate, trackmembers overlying the bed plate at opposite longitudinal edges thereof,a filler overlying the bed plate between safid track members, and meansslidably connecting the track members with the bed plate whereby saidtrack members are adjustable upon the bed plate.

2. A chair mat comprising a pair of track members spaced apart, eachhaving relatively raised portions and relatively depressed trackportions, and a filler member interposed between said track membersconnected thereto having its upper surface disposed substantially levelwith the raised portions of the track members.

3. A chair mat comprising a pair of separate track members each beingformed from sheet metal, said sheet metal being bent to form relativelyraised portions and relatively depressed portions, a filler extendingbetween said track members having its edge portions extending beneathand in engagement with under surfaces of the relatively raised portionsof said track members so .that the upper surface of the filler standssubstantially in the plane of the relatively raised portions of thetrack members, and means adjustable to hold said track membersimposition lapping a greater or less portion of the ller as desired, forthe purpose set forth.

4c. A chair mat comprising a bed plate, track members at opposite edgesof said bed plate, means whereby said track members are slidablyconnected with the bed plateand ada ted to hold the track members at anyse ected distance apart, a filler mounted upon the bed plateintermediate said track members, and the track members having partsserving as clamps by which to hold the filler in position.

1intestimony whereof l hereby affix my signature' in the presence of twowitnesses.

MAURC'E BLUMENTHAL. Witnesses:

L. Gassman HANDY, Mar Somma.

